G4rb4g3/custom loc provider

[mfazekas]

CustomLoc provider component:

useEffect(() => {
   const interval = setInterval(() => {
      setLocation((location) => [location[0] + 0.0001, location[1] + 0.0001]);
   }, 500);
   return () => clearInterval(interval);
  }, []);

...
<CustomLocationProvider coordinate={location} />